在线文本编辑器
<?
function write_file($filename,$contents)
    { if (
$fp=fopen($filename,"w"))
          {
           
fwrite($fp,stripslashes($contents));
           
fclose($fp);
           return 
;
          }
      else {return 
0; }
    };
if (
$submitbutton=="完成")
    { 
$rs=write_file("$page","$test");
      echo 
"<a href="$page">$page</a><br>";
    }
elseif (
$action=="page")
    { 
$content="$page";
      
$fp=fopen($content,"r") or die('Could not open file.');
      
$contents=fread($fp,filesize($content)) or die('Could not read from file.');
      
$contents=htmlspecialchars($contents);
      
fclose($fp);
      echo 
"<form action="$PHP_SELF?page=$page" method="post">";
      echo 
"<textarea name=test rows=20 cols=70 wrap=soft>";
      echo 
$contents;
      echo 
"</textarea>";
      echo 
"<input type="submit" name="submitbutton" value="完成">";
      echo 
"</form>";
    }
else
    { echo 
"<form action="$PHP_SELF?action=page" method="post">";
      echo 
"<input type=text size=20 name=page>";
      echo 
"<input type="submit" name="send" value="选定">";
      echo 
"</form>";
    }
?>